
cross-section illustration |

surface magnification |
3M Imperial Diamond Lapping Film Type 661X
Imperial Diamond Lapping Film offers a repeatable, precision finish on extremely hard materials. It combines micron-graded diamond particles, a resin bonding system and a highly uniform 3mil (0.08mm) polyester film backing for a cleaner, more consistent alternative to diamond compounds or slurries. Available with Plain back or PSA (pressure sensitive adhesive). NH = no hole. Type 661 Imperial Diamond Lapping Film replaces type 651. Type 661 has a more robust, 3 mil (0.08mm) polyester backing film, while the type 651 had a 2 mil (0.05mm) backing film. |